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    Re: ID the year of this 2 dollar brick top.

    Looks like a model 3054, made in 1967 and 68. That plastic tank is not the original. plastic tank bricks didnít start until around 1974. Nice mower!
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    Re: How to adjust altitude jet

    Here you go, this is the link to adjustment of the carbs for the F series engines from 1978 through 1988. It's the later F series Lawnboys that have the plastic, non adjustable carbs (around 1995 and...
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    Re: 1966 7216 decals , where to find .

    That 1966 model 5234 on YouTube Is probably my restored mower. I got the decals custom made by a business named Crismar Graphics out of Michigan City Indiana. That was about 10 years ago and Iím...
  4. Re: What was the last year the metal gas tank was used in the bricktop ?

    The parts breakdown is showing 1973 as the last year for the steel tank bricks.
  5. View Post

    I read where you checked the exhaust ports, but not seeing anything about checking/cleaning the muffler. From my experience with the F series engines the mufflers are quicker to sludge up than the...
  6. Re: Parting out old Lawnboy 2 cycle mowers ???

    You can sell those parts on eBay. In my opinion thatís best way to go for parting out theses old classics.
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    Re: 1024 Gold series

    Item #66 in the parts diagram for your mower shows to be part number 98-1383. Is that the part you need? I don't see a 98-1562 anywhere in the parts breakdown, although when I googled that part...
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    Re: 1024 Gold series

    Are you sure you have the model number correct? I just don't see a model 1024 Gold Series Duraforce, but I do see the 10424 Duraforce.
  9. Re: F engine reed valve replacement - hints?

    Thanks for the pic and clarification on the sealant Russ, for some reason I had Permatex in mind, but the Loctite product in the pic is the same stuff I have always used.
  10. Re: F engine reed valve replacement - hints?

    Itís pretty straight forward. Clean mating surfaces good and use something like Permatex Anaerobic sealant (red) to seal the two halves. Just follow the on-manual and should be no problems. Below...
  11. View Post

    If you put fresh fuel mix directly through spark plug hole and got nothing then it almost has to be either low compression, or faulty spark/no spark. Put a teaspoon of oil in the plug hole and try...
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    Re: Re-attaching cylinder head

    I'm kinda assuming that you don't have access to the Toro manual that includes mounting the muffler plate and engine for your D-400, so I'll just give you the instructions without pics and hope you...
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    Re: Re-attaching cylinder head

    Below is a link to the D-400 teardown and reassembly, if you haven't already found it. Not sure exactly what you are having problems with, can you elaborate?
    ...
  14. Re: cylinder head spark plug hole threads stripped in LB model 10323

    Heli-coil is a brand name, they are the biggest in the industry and they make spark plug inserts as well as any other insert you can imagine.
  15. Re: cylinder head spark plug hole threads stripped in LB model 10323

    A Heli-coil insert repair kit is what you want. The local hardware store should have them in stock. If you donít mind spending a little extra money a machine shop can do it all for you.
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    Repairs Re: Lawn Boy Gold Series Muffler Plate

    What about just doing an engine swap. You probably can find a good used F series SP for cheap. I think yours has the drive pulley on the crank versus the drive shaft type. The one in the link...
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    Fuel Re: lawnboy model 10343

    I would also like to see these official documents supporting the 50:1 fuel/oil mix ratios for these new Lawnboy engines. All the spec sheets I see say 32:1 for D's (post 1970), F's,V's, and E's, and...
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    Repairs Re: Lower Control Cable Parts S19ZPN

    Here is a parts breakdown for the engine end of that flywheel brake/shutoff system. It's all in the lower left corner, items #1,2, 30,45 etc etc, going all the way up to item #50.
    ...
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    Re: Lawnboy 10515 Engine Seal Issue

    Pull the carb and check the reeds. If they are bent, damaged, or if a blade of grass, or any debris is stuck in the sealing surface not allowing the reeds to fully close it will tend to blow some...
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    Re: Lawnboy 10515 Engine Seal Issue

    I wouldn't be so quick to assume a main seal. If a main seal is leaking to that extent on one of these 2 strokes it will really effect performance, and I'm not hearing you say it's lacking in...
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    Re: New Aquisition

    That mower looks to be a Model 6461 commercial made between 1986 and 1988.

    Edit: just remembered that this mower might be Canadian, which means the model numbers might be different up there, but...
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    Re: Trying to remove belt drive pulley

    Sounds very familiar. Nothing extra that I know to help. Torch heat, penetrating fluid and tapping with brass and hammer was my technique as well, ended up cutting it off with a Dremel. I ended up...
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    Re: Lawnboy 10330

    In reference to the notion that OMC was second fiddle to Victa. Well I don't know anyone that has experience with both, so not much way to compare if you haven't operated both fairly extensively. ...
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    Re: Lawnboy 10330

    Yes it is called a "Bricktop". Any of the Lawnboys from the 50s to the early 80s with the rectangular metal shroud like that were commonly called "Bricktops". Glad you have the Lawnboy bug. I've...
  25. Re: wingless' 1956 Lawn Boy Iron Horse Brick Top Model 5000 18" C-12 Aluminum Deck Re

    Awesome! Thanks for sharing!
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    Re: Lawnboy 10330

    I think the 10330 has a Tecumseh 4 stroke. Toro bought Lawnboy from OMC in 1989 and while they still produced many great 2 strokes after that, they started transitioning to 4 strokes in the mid 90s...
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    Re: Lawnboy 10330

    Not really a cult following, but more like folks who really appreciate a company like OMC taking engineering to the next level and manufacturing a machine that was, and still is the best in it's...
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    Re: Plastic vs. Walbro carburetors

    Going from a first gen F series with the old OMC plastic carbs to the newer Walbro carb requires a pulse hole to be drilled in the carb mating flange of the old OMC cylinder cover. It's a tight fit...
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    Re: lawn boy model #8073 surging

    Don't forget to clean the fuel inlet screen on that Walbro carb. If you aren't familiar with the setup it's kinda easy to miss it. Just pull on the little brass ring at the inlet nipple and it...
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    Re: lawn boy model #8073 surging

    I think that 8073 can be made to run great without enlarging the main jet. You can adjust the mixture to your liking with the one scew on the front of the carb once you get it clean and you can...
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    Re: lawn boy model #8073 surging

    I agree with the above reply, but want add a note. Don't forget to check for air leaks at the carb mating flange. I think that one has a metal Walbro so it's not as likely to warp like the plastic...
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    Re: Need chrome flywheel screen

    Okay I think I understand, so you just need the outer ring (part number 604271). They have a couple of NOS ones on ebay right now, unfortunately the extras that I have are probably not any better...
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    Re: Need chrome flywheel screen

    To my knowledge those flywheel screens 604272 were never chrome from the factory. The retaining ring around the perimeter is aluminum and sometimes polished, and the flywheel nut and the washer...
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    Re: 10343?????????????

    The V series engine is not really rare, used for many models in the mid 90s. It has the same rotating assembly as the OMC/Lawnboy F series engine, but has a slightly higher compression cylinder...
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    Re: Seal for fuel shutoff?

    Yes that would be an o-ring and yes the auto parts store is a good source for those o-rings. You can see the green o-ring underneath the hex nut in this pic. This particular valve is the one on my...
  36. Re: Lawn-boy Silver Duraforce 10323 mulching fan

    I agree with lee in that it probably depends on the grass you are cutting. Up north in the cool season grasses like Bluegrass and Fine Fescue it will probably work just fine, but down here in the...
  37. Re: Lawn-boy Silver Duraforce 10323 mulching fan

    I have had one model of F series that came with a mulch fan (model 10420) and I didn't notice it being of any use, so I removed it to. I have no experience with those Duraforce engines, but I know...
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    Re: Lawnboy for sale

    I think it was an LMR-10. A choke only, no primer carb. The same one that is on my 10420 and 680543. If you get it and want to convert to the metal Walbro just use the earlier version of that...
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    Re: Lawnboy for sale

    The 10401 is a nice little F series mower. I'm not real fond of the plastic carb on those, but other than that it's a great little mower. I have one that I inherited from my father and I ended up...
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    Re: Lawn Boy Supreme

    Good question! Considering the age of these mowers I'd say that parts availability is fairly good. If you just scan the parts catalogue for the model 8237 it probably shows 50% or so no longer...
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    Re: Lawn Boy Supreme

    Okay that's a nice one. The SP version of that one is probably going to be like a model 8237, made from 1978 to 1983. Those are really good F series cast aluminum deck mowers, very popular indeed....
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    Re: Lawn Boy Supreme

    Built prior to 1981? I'm not seeing any in the Supreme category prior 1981, that doesn't mean you aren't right though. Could you give more info? What about a pic?
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    Re: Gas Leak 10515

    That's great news! Sounds like a fluke to me. I like the way you keep care of that machine. You have a primer so yes you are probably right in that your carb is the plastic version, not the...
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    Re: Gas Leak 10515

    Sounds like a good plan to check the valve for leakage. I think I would also replace the carb needle and seat. The valve could restrict fuel enough that the engine fails to run when closed, but...
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    Re: Gas Leak 10515

    A 10515 is not a Duraforce, it's a self-propelled F series. I think you could be right though in that the needle and seat are not functioning properly, but for this to happen I think there would...
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    Re: Gas Leak 10515

    If the valve is working properly then it almost has to be a leaky tank. If the valve is working properly and you close it and run the engine dry then there should be nothing to leak out other than...
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    Re: Magnesium decks?

    Just the aluminum plate is different, the engine should be interchangeable.

    Edit: since the carbs might different between the two engines you may need to leave the original carb on the donor...
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    Re: Lawn Boy 3054 60yr Refresh

    Man both of those mowers look outstanding, that Krylon Almond looks like a perfect match.
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    Re: Magnesium decks?

    110 psi cylinder compression is good for an F series Lawnboy, but crankcase compression/vacuum would be the more likely issue in my opinion.
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    Re: Magnesium decks?

    Yes the fuel is drawn up through the nozzle in the carb, but not directly. When the air being drawn through the carb is at a sufficient velocity it creates a venturi effect and draws a sufficient...
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